They all have a rocky surface
Some of the evidence comes from fossils, and some comes from studies that show how similar living things are to one another. By the 1930s, scientists had also learned about genes. As a result, they could finally explain how characteristics of organisms could pass from one generation to the next and change over time
Answer:
I guess membrane is answer
The correct answer is: Galaxies in the universe are moving away from the earth.
